How to enable Administrator user account on Windows 7

By default the Administrator account (the super user) is disabled on Windows 7 and you have to create a general account (with Administrator privilege) during installation. It will make your system is not harmful this way.

However, sometime you need to edit a file located in ‘C’ drive or system files and it would not be done if you are not using Administrator account. So how to enable the Administrator account on Windows 7? Here are the steps by step: